The Strange Relationship: Lonely writer Theodore Twombly (Joaquin Phoenix) buys himself an operating system which has been designed to evolve like a human.
After naming her Sam (Scarlett Johansson), he finds himself falling for her and getting more lost in his own world than ever before.
Could It Ever Work In Real-Life? It's bound to happen. We're a society that sleep with our phones more than with our other halves, and if Siri got a sexy vocal makeover à la Scarlett, we'd be seeing a whole lot of computer / human relationships.